
easy
5 hours
Suitable for most fitness levels; hikers should be comfortable walking short, uneven trails for 30–60 minutes.
Drive west from San Martín de los Andes into Lanín National Park for a five-hour loop that mixes Patagonian plains, a short forest hike and a 65-foot waterfall. Expect easy walking, big lake views and Mapuche cultural notes along the way.
The minivan peels away from San Martín de los Andes and the town's pastel houses thin into open sky. Within minutes the road opens onto the Pampa de Trompul: a wind-sculpted plain where grass lies flat and stone outcrops punctuate the horizon. Here the landscape speaks in simple, blunt lines — Cerro Colorado and the extinct shoulders of Savannah Mountain watch in the distance — while the guide points out Piedra de Trompul, a rock the Mapuche long read as a weather oracle.

The 30-minute trail to Chachín has mud and exposed roots—sturdy hiking shoes with good tread make the short climb far more comfortable.
There are no services on the trail; a reusable bottle keeps you hydrated during the hikes and lakeside stops.
You won’t be crossing into Chile, but having your passport or ID is useful for photos near the historic border buildings and for any logistical checks.
Morning or late-afternoon light flatters the lakes and the forest; mid-day is harsher but fine for waterfall shots when exposure is adjusted.
This corridor sits on traditional Mapuche lands; many place names and local stories reference indigenous use and weather lore tied to geological features.
Lanín National Park protects old-growth Patagonian forest and sensitive wildlife—practice leave-no-trace, stick to trails and avoid disturbing riverbanks and historic structures.
Spring rains and wind can arrive suddenly—waterproof layers keep you warm and dry.
spring specific
Good tread and ankle support help on muddy, root-strewn trails to the waterfall.
Hydration is essential on the sunny stretches across the pampa and during hikes.
summer specific
Capture the waterfall balcony, lake panoramas and forest details—bring a protective case for spray and rain.